Here are some charts on the airflow inside a rotary engine.
The NASA paper was incomplete as it showed the airflow at only
one position of the rotor.

The John Deere paper was CFD or FEA so it could be garbage...
in garbage out. Here it is for what its worth.

I do note a lot of turbulence when the plug fires.
The length of the arrows indicate the air velocity.
The RPM was only 3600.


There is another point to be made here. It appears the max temperature
of the rotor occurs in the pocket close to the rotor bearing.
This give a lot of credence to the liquid cooled e-shaft idea
to be used in charged cooled engines.